The score is calculated by squaring each break, adding up those squares and then taking the square root of that sum-of-squares. This means:

- 4 breaks of 20 score the same as 1 break of 40. (because 4x20x20 = 40x40)
- This effectively gives more credit to higher breaks.
- You can be ahead of somebody whose highest break is bigger than yours if you get more breaks of a lower value.
- You should make sure you record your breaks on the scorecard so that they contribute to your total score in this table.